3M 31491 Cubitron II Hookit 6 in. 1000+ Grit Clean Sanding Abrasive Disc (50 ct). 3M Cubitron II Hookit Clean Sanding Abrasive Disc 737U combines the highest 3M technology for automotive repair. Its long-lasting triangular shaped grain and multi-hole pattern for superior dust extraction make the disc ideal for a long disc life.
